Obtaining and Characterisation of Thermoresistive Pigments

  • Andrei Victor SANDU Romanian Inventors Forum, Iaşi, Romania
  • Violeta VASILACHE "Stefan cel Mare" University of Suceava, Romania
  • Ion SANDU "Al. I. Cuza" University of Iasi, Romania
  • Mihaela SAVIUC "Gheorghe Asachi" Technical University of Iasi, Romania
  • Ioan Gabriel SANDU "Gheorghe Asachi" Technical University of Iasi, Romania
  • Ioan Marcel POPA "Gheorghe Asachi" Technical University of Iasi, Romania
Keywords: chemical doped zinc oxide, thermoresistive pigment, mosaic, stained glass, SEM-EDX, TG/DTA

Abstract

The paper describes the obtaining and chemical and physico-structural characterisation of a green thermoresistive pigment. The pigment is made of ZnO dopped with Sb, Bi, Cr, Co and Fe oxides and it is used at mosaics and stained glass. The procedure is based on a sequential coprecipitation “layer on layer” process in aqueous solution, followed by drying and calcinations at controlled temperature conditions, then grinding in a colloidal mill and mixed with glass powder forming the “frit pigment”. This by vitrification and frosting colours superficial the glass.
The powder was analysed by SEM-EDX and DSC.

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References

[1]. Orban, N.- Pigmenţi anorganici şi organici pentru lacuri şi vopsele, Centrul de documentare, M.I.Ch., Bucureşti, 1978.
[2]. Orban, N.- Pigmenţi anorganici, Ed. Tehnică, Bucureşti, 1974, p. 113.
[3]. Smocot, R.- Pigmenţi speciali, Ed. Inst. Pol. „Gh. Asachi” Iaşi, 1986, p. 64.
[4]. Beavis, C.M. - Pigment, Dyestufss and Laches, Ed. Chapmann and Halll, London, 1966.
[5]. Sandu I., Bounegru T., Sandu I.G., Alexandru A., Sandu I.C.A., Diaconescu F., Sandu A.V.- „Process for obtaining a green, opaque, photo- and thermoresistant pigment”, Brevet MD3296/30.04.2007.
Fascicle_9_2_2009
Published
2009-11-15
How to Cite
1.
SANDU AV, VASILACHE V, SANDU I, SAVIUC M, SANDU IG, POPA IM. Obtaining and Characterisation of Thermoresistive Pigments. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Nov.2009 [cited 29Apr.2024];32(2):55-8. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/3037
Issue
Vol 32 No 2 (2009)
Section
Articles

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